Update translation.py

translation.py

@@ -19,7 +19,7 @@ def load_model(source_lang, target_lang):
         model = MarianMTModel.from_pretrained(model_name)
         return tokenizer, model
     except Exception as e:
-        st.warning(f"No direct model for {source_lang} to {target_lang}. Using cached en-fr.")
+        st.warning(f"No direct model for {source_lang} to {target_lang}. Falling back to English buffer.")
         return _load_default_model()
 
 @st.cache_data(ttl=3600)
@@ -31,8 +31,9 @@ def translate_cached(text, source_lang, target_lang):
     tokenizer, model = load_model(src_code, tgt_code)
     inputs = tokenizer(text, return_tensors="pt", padding=True, truncation=True, max_length=500)
     with torch.no_grad():
-        translated = model.generate(**inputs, max_length=500, num_beams=2, early_stopping=True)  # Reduced beams for speed
-    return tokenizer.decode(translated[0], skip_special_tokens=True)
+        translated = model.generate(**inputs, max_length=500, num_beams=2, early_stopping=True)
+    translated_text = tokenizer.decode(translated[0], skip_special_tokens=True)
+    return translated_text if translated_text.strip() else text  # Fallback to input if empty
 
 def translate(text, source_lang, target_lang):
     if not text: